Thresher construction



July 21, 1942. M. J. MITCHELL THRESHER CONSTRUCTION Filed Sept. 29, 1939 ZvSheets-Shaet 1 12222617101" MJMttche LL @mcm 9M Jufiy 21, 1942. M. J. MITCHELL, 2,290,291

THRESHER CONSTRUCTION Filed Sept. 29, 1939 2 Sheets-Shed? Patented July 21, 1942 THRESHER CONSTRUCTION Melville J. Mitchell, Moline, Ill., assignor to International Harvester Company, a corporation of New Jersey Application September 29, 1939, Serial No. 297,137

12 Claims.

This invention relates to a thresher construction. More specifically it relates to a housing for parts of the thesher mechanism.

It is the usual practice to support the parts of a thresher mechanism upon angle members forming a framework and to cover the angle members with sheets which form a shell. The present tendency toward streamlining and the wide spread use of welding demand and make possible a more unitary construction. The present invention contemplates a construction by which various stiffening members are secured to a thresher shell so that the shell itself is strong enough to support parts of the thresher body.

An object of the present invention is to provide an improved thresher construction.

Another object is the provision of a construction in which various stiffener members and a shell are joined to form a unitary structure for the support of thresher parts.

According to the present invention, an inverted U-shaped shell is provided for the support of parts of the thresher mechanism. The shell by itself is of insuificient rigidity to support the thresher mechanism, and consequently various other parts are welded or otherwise secured to the shell to give the shell the requisite structural strength and stiffness.

In the drawings:

Figure 1 is a side view of the improved thresher body;

Figure 2 is a plan view of the same;

Figure 3 is a section taken along the line 3-3 of Figure 2;

Figure 4 is a section taken along the line 4-4 of Figure 1;

Figure 5 is a section taken along the line 5-5 of Figure 4;

Figure 6 is a section taken along the line 65 of Figure 2;

Figure 7 is a section taken along the line 1'! of Figure 1;

Figure 8 is a section taken along the line 8-8 of Figure 1; and,

Figure 9 is a section taken along the line 9-9 of Figure 8.

The thresher construction of the present invention, as shown in Figures 1 and 2, comprises an inverted U-shaped shell l5 adapted to house a thresher mechanism, not shown, an axle l6 supported on wheels I! and I8, and a draw frame IS. The draw frame comprises three longitudinally extending members 20, 2| and 22 braced by cross members 23. The members 20, 2|, and

I the shell I5.

22 extend in diverging relationship from gen- 55 erally a common point. The member is connected at one end of the axle l6 outside the wheel I 8. The member 2| is connected adjacent the midpoint of the axle. The member 22 extends through an opening in the top 24 of the shell [5 and is secured by bolts 25 to the top 24 and to a stifiening member 26 secured inside the top of the shell and extending as an extension of the member 22.

The U-shaped shell l5 comprises the top 24 and a pair of sides 2'! and 28 welded thereto. The shell I5 is stiffened by a plurality of channel members 29, 3!], 3| and 32 secured as by welding to the outside of the shell. trated in Figure 7, the channel 29 is semi-circular in shape and has flanges 33 at its edges welded to the side 28 of the shell 15. The channels, 30, 3| and 32 are of similar conformation. The channels 29 and 30 extend only along the sides 21 and 28. The channels 3| and 32 extend along the sides 21 and 28 and over the top 24. Figures 8 and 9 show a channel member 34 welded to the inside of the top 24 as a stilTening means. The channel member 34 comprises a base 35, side 36 and side 31, which is welded to the top 24. There is a plurality of these channel members secured in parallel spaced relation to the inside of the top 24. The shell I5 is also strengthened by means of a grain elevator housing 38 secured to the side 28 and a tailings elevator housing 39 secured to the side 27. As illustrated in Figures 4 and 5, the housing 38 is secured to one side of a channel member 40, the other side of which is secured to the side 28 of The tailings elevator housing 39 is secured in similar fashion to the side 2! by means of a channel member 40'.

The shell 15 also includes a downwardly opening hood 4| at the rear thereof which comprises a curved top piece 42 and sides 43 and 34, the parts being secured together as by welding. This hood has an outwardly extending bead 45 along its lower edge.

As shown in Figure 3. the axle l6 passes through the sides 21 and 28 of the shell IS. The axle is composed of tubular sections 36 and 41 sleeved over and secured to one another by means of a tubular member 48 to which the parts are pinned as at 49. Pins 511 secure the section 36 of the axle to the tubular member 48 and to a tubular sleeve 5| secured in the side 21 by means of brace members 52 and 53. Angle members 54 and 55 extend respectively along the lower edges of the sides 21 and 28 so as to stiilen the shell.

Plates 56 and 51 extend below the edges of the AS illus-' spaced relation to and above a mid-point of the axle, an inverted U-shaped thresher shell secured to and over the axle alongside the draw frame in transverse relationship with the axle and having its top secured to the third member of the draw frame, said shell having a downwardly opening hood at one end thereof provided with an outwardly beaded edge, and stiffening means for the shell, comprising a, channel member having one side secured to a side of the shell and an elevator housing secured to the other side of said channel member.

11. A thresher construction comprising a wheel-supported axle, a draw frame including three members extending in diverging relation from a common point, two members being secured respectively at the end and at a mid-point of the axle, and the third member extending in spaced relation to and above a mid-point of the axle, and a thresher shell secured to and over the axle alongside the draw frame in transverse relationship with the axle and having its top secured to the third member of the draw frame.

12. A thresher construction comprising a wheel-supported axle, a draw frame including three members extending in diverging relation from a common point, two members being secured respectively at the end and at a mid-point of the axle, and the third member extending in spaced relation to and above a mid-point of the axle, and a thresher shell secured to and over the axle alongside the draw frame in transverse relationship with the axle and having the under-side of its top secured to the third member of the draw frame.

MELVILLE J. MITCHELL.

CERTIFICATE OF CORRECTION. Patent No. 2,290,291. July 21, 19L 2.

MELVILLE J. MITCHELL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, second column, line 25, claim 6, for the transverse read -in transverse-; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 29th day of September, A. D. l9h2.

(seal) Henry Van Arsdale,

Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION. Patent No. 2,290,291. July 21, 19L 2.

MELVILLE J. MITCHELL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, second column, line 25, claim 6, for the transverse read -in transverse-; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 29th day of September, A. D. l9h2.

(seal) Henry Van Arsdale,

Acting Commissioner of Patents.

CERTIFICATE OF CORRECTION. Patent No. 2,290,291. July 21, 191 2.

- MELVILLE J. MITCHELL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page .2, second column, line 25, claim 6, for "the transverse' read -in transverse; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 29th day of September, A. D. 1914.2.

(seal) Henry Van Arsdale,

'A-cting Commissioner of Patents. 

